Article (magazine)  (Jan 1955)  Page(s) 20.  
 
In magenta, (Class VII) , 'Shikoden,' 'Eclaireur,' (very early ), and the common Japanese grafting stock sold under the name Moutan.

Article (magazine)  (Jan 1955)  Page(s) 57.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Japanese, Magenta, 'Eclaireur' (Des. 1909), [Gardens] Scott Foundation

Website/Catalog  (1941)  Page(s) [3].  
 
Tree Peonies
Eclaireur. Single; light rose-pink...$5 00